<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <title>上传文件示例</title>
</head>
<body>
<form action="/uploadfile" method="post" enctype="multipart/form-data">
    <input type="file" name="f1">
    <input type="submit" value="上传">
</form>
</body>
</html>